Funding for this research was provided by:
The National Natural Scicence Foundation of China (NO. 81700644)
The Shaanxi Social Development Science and Technology Research Project (NO. 2020SF-162)
Article History
Received: 19 December 2020
Accepted: 25 January 2022
First Online: 18 February 2022
Declarations
:
: This clinical study was a retrospective study. It only collected the clinical data of patients and did not interfere with the treatment of patients. The study was conducted in accordance with the principles of the Declaration of Helsinki, and the study protocol was approved by the ethics committee of The First Affiliated Hospital of Xi’an Jiaotong University. Because of the retrospective nature of the study, patient consent for inclusion was waived.
: Not Applicable.
: ALL authors have declared that no competing interests.